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juin [17]
2 years ago
9

15-a=20 what is the vaule of a?

Mathematics
2 answers:
torisob [31]2 years ago
5 0

Answer:

a=-5

Step-by-step explanation:

15-a=20

Solve for a.

15-20=a

-5=a

olganol [36]2 years ago
4 0

Answer:

15a=20

a=20/15

a=4/3

ok

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Rita is starting a running program. the table shows the total number of miles she runs in different weeks. what is the equation
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Based on the table, the equation of the line of best fit to the nearest thousandths is equal to y = 1.671x + 4.699.

<h3>How to determine the equation of the line of best fit?</h3>

Mathematically, the equation of the line of best fit is calculated by using this formula:

y = mx + c

<u>Where:</u>

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Based on the table, the slope and intercept to the nearest thousandths are equal to 1.671 and 4.699 respectively.

Therefore, the equation of the line of best fit is equal to y = 1.671x + 4.699.

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If x = 9 units and h = 4 units, then what is the area of the triangle shown above?
Aleks04 [339]

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Answer:

it let me now!!

Step-by-step explanation:

so i cant put an answer for some reason but here it is: when dividing fractions you would need to multiply to solve. The easyist way to do so from the ways i learned is keep change flip. so keep: 2/3 change a divide to a multiplication simbol and flip 1/4 to 4/1 so your left with G: 2/3 x 4/1

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erik [133]
The first thing I would do is convert that 1.2 kilograms of salt to grams; that would ensure that all the units are the same so we can perform calculations on them.

1.2kg = 1200g


Next, I would find out how many students can do the experiment with 1200g of salt, by finding it how many 25g are in 1200g (by dividing them).

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That means we still have 80 students left to provide salt for (128 - 48).
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Therefore he needs:
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3 years ago
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